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/***
* ASM tests
* Copyright (c) 2000-2011 INRIA, France Telecom
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.objectweb.asm.commons;
import java.io.PrintWriter;
import java.io.StringReader;
import java.io.StringWriter;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.net.URL;
import java.net.URLClassLoader;
import junit.framework.TestSuite;
import org.codehaus.janino.ClassLoaderIClassLoader;
import org.codehaus.janino.DebuggingInformation;
import org.codehaus.janino.IClassLoader;
import org.codehaus.janino.Parser;
import org.codehaus.janino.Scanner;
import org.codehaus.janino.UnitCompiler;
import org.objectweb.asm.AbstractTest;
import org.objectweb.asm.Attribute;
import org.objectweb.asm.ClassReader;
import org.objectweb.asm.ClassVisitor;
import org.objectweb.asm.ClassWriter;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes;
import org.objectweb.asm.attrs.CodeComment;
import org.objectweb.asm.attrs.Comment;
import org.objectweb.asm.util.TraceClassVisitor;
/**
* GASMifier tests.
*
* @author Eugene Kuleshov
* @author Eric Bruneton
*/
public class GASMifierTest extends AbstractTest {
public static final Compiler COMPILER = new Compiler();
private final static TestClassLoader LOADER = new TestClassLoader();
public static TestSuite suite() throws Exception {
return new GASMifierTest().getSuite();
}
@Override
public void test() throws Exception {
ClassReader cr = new ClassReader(is);
if (cr.b.length > 20000) {
return;
}
StringWriter sw = new StringWriter();
TraceClassVisitor cv = new TraceClassVisitor(null, new GASMifier(),
new PrintWriter(sw));
cr.accept(new ClassLocalVariablesSorter(cv), new Attribute[] {
new Comment(), new CodeComment() }, ClassReader.EXPAND_FRAMES);
String generated = sw.toString();
byte[] generatorClassData;
try {
generatorClassData = COMPILER.compile(n, generated);
} catch (Exception ex) {
trace(generated);
throw ex;
}
ClassWriter cw = new ClassWriter(0);
cr.accept(new ClassLocalVariablesSorter(cw), new Attribute[] {
new Comment(), new CodeComment() }, ClassReader.EXPAND_FRAMES);
cr = new ClassReader(cw.toByteArray());
String nd = n + "Dump";
if (n.indexOf('.') != -1) {
nd = "asm." + nd;
}
Class<?> c = LOADER.defineClass(nd, generatorClassData);
Method m = c.getMethod("dump", new Class<?>[0]);
byte[] b;
try {
b = (byte[]) m.invoke(null, new Object[0]);
} catch (InvocationTargetException ex) {
trace(generated);
throw (Exception) ex.getTargetException();
}
try {
assertEquals(cr, new ClassReader(b), new Filter(), new Filter());
} catch (Throwable e) {
trace(generated);
assertEquals(cr, new ClassReader(b), new Filter(), new Filter());
}
}
private void trace(final String generated) {
if (System.getProperty("asm.test.class") != null) {
System.err.println(generated);
}
}
static class TestClassLoader extends ClassLoader {
public Class<?> defineClass(final String name, final byte[] b) {
return defineClass(name, b, 0, b.length);
}
}
static class Compiler {
final static IClassLoader CL = new ClassLoaderIClassLoader(
new URLClassLoader(new URL[0]));
public byte[] compile(final String name, final String source)
throws Exception {
Parser p = new Parser(new Scanner(name, new StringReader(source)));
UnitCompiler uc = new UnitCompiler(p.parseCompilationUnit(), CL);
return uc.compileUnit(DebuggingInformation.ALL)[0].toByteArray();
}
}
static class ClassLocalVariablesSorter extends ClassVisitor {
public ClassLocalVariablesSorter(final ClassVisitor cv) {
super(Opcodes.ASM4, cv);
}
@Override
public MethodVisitor visitMethod(final int access, final String name,
final String desc, final String signature,
final String[] exceptions) {
return new LocalVariablesSorter(access, desc, super.visitMethod(
access, name, desc, signature, exceptions));
}
}
static class Filter extends ClassVisitor {
public Filter() {
super(Opcodes.ASM4);
}
@Override
public MethodVisitor visitMethod(final int access, final String name,
final String desc, final String signature,
final String[] exceptions) {
return new MethodVisitor(Opcodes.ASM4, super.visitMethod(access,
name, desc, signature, exceptions)) {
@Override
public void visitMaxs(final int maxStack, final int maxLocals) {
super.visitMaxs(0, 0);
}
};
}
}
}
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